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题目要求CHANGE后要是最平均的情况啊...所以这样是没问题的...

Posted by mayp at 2007-04-13 22:55:23 on Problem 2646
In Reply To:Re:这道题感觉有点问题吧。 Posted by:Iambitious at 2006-12-07 16:57:31
> 结果,只用一个平均值(四舍五入),就ac了,感觉此答案和题意不符阿。

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